我们几乎无法避免这样的推论:光是由同一种介质的横向波动组成的,这种介质也是电和磁现象的原因。
"The most effective way to destroy people is to deny and obliterate their own understanding of their history."
Sustainability isn't an option; it's a responsibility we owe to future generations.
The best way to predict the future is to invent it.
能够激发学生对一件善行或一首好诗的感受的教师,比那些用一排排自然物体填满我们记忆的人成就更大。
树林里分出两条路,而我选择了人迹罕至的那条,这决定了一切。